Programmable-frequency-sine-wave-oscillator
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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Using this circuit will give Good Charging results to the Gell Cell Battery used in the Metal...
This power supply is able to deliver adjustable center-tapped DC from 0 to about 30 volts, as...
The 741 has a maximum gain of 20,000, but the circuit is so designed that the IC"s gain is...
Capacitor C1 is charged through timing resistor R1 when the clock output is high. When C1...
This circuit has an overall gain of 320. More gain can easily be obtained by lowering the value...
The battery charger circuit below is very simple to build requiring only a handful of cheap parts...
The The Circuit of DC Voltage Doubler was designed on arrived type Power Supply. Please study...
The 555 timer IC is an integrated circuit (chip) used in a variety of timer, pulse generation and...
This is the circuit of Op-Amp Microphone Preamplifier using a single power supply, this circuit...
Any mode (e. g. CW, AM, SSB, FSK) which is initiated in the HF transmitter or transceiver can be...
Here is the circuit diagram of an excellent stereo preamplifier with tone control using the IC...
The MT8885 is a monolithic DTMF transceiver with call progress Filter It is fabricated in CMOS...
To this small FM transmitter to change the mic for an audio jack so I can plug it into my mp3...
Each CdS cell acts as a variable resistor in a single variable phase-shift circuit and there are...
With the values shown, this circuit has a ±0. 025 °C accuracy over 0 ° to 100 °C. The input...
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